Question 958694
Please help me solve this identity step by step
For [0, 2π) 
{{{(1-sin^2(x))/cot^2(x)=sqrt (2)/2}}}
{{{(cos^2(x))/(cos^2(x)/sin^2(x))=sqrt (2)/2}}}
{{{sin^2(x)=sqrt (2)/2}}}
sinx=±√2/2
x=π/4, 3π/4, 5π/4, 7π/4